Beating-roll for refining-engines.



E. A. JONES.

BBATING ROLL FOR REFINING ENGINES.

AYPLIGATION TILED NOV. 30, 1908.

2 SHEETS-SHEET l.

Patented Oct. 12, 1909.

a W m mm 3 i E. A. JONES.

BEATING ROLL FOB. REFINING ENGINES.

I APPLICATION FILED NOV.30,1908. $36 546,

Patented Oct. 12, 1909.

I 2 SHEETS-SHEET 2.

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EDWARD A. JONES, 03L @IITSEIELD, MASSACHUSETTS.

mer no-sons m. enemies-enemies.

I Specification of Letters .Pstent.

Patented Get. 12, 196%.

Application tiled November 30, 1508. Serial No. 55,152.

To all whom it may conccmr V 'Be it known that I, EDWARD A. Jones,

I a citizen of the United States, residing at Pittsfield, county of Berkshire, and State of Massachusetts, have invented certainnew and useful Improvements in Beating-Rolls 'Zfor Refining-Engines, stully described and represented in the following specification and the accompanying drawings, forming a part of the some.

This invention relates to improvements in rolls for washing, beating and refining engines used in the treatment of paper pulp,

I the improvement being designed especially for rolls of the cl bandless rolls.

It is the object of the present invent-ion to provide an improved roll of such type hevfing improved means Which are simple, cheap end durable for locking the grinding bars ass known in the art'es of knives in such roll.

. knives in place Figs. 4:, 5, 5", 6, 6 and 7 are cross sectional viewson an enlarged scale showing various constructions for locking the grinding bars or knives in position. Fig. 8 is a longitudinal section of e. modified construct/on of beating roll; Fig. 9 is s.- siznilsr I view. showing a modificotionoi .the construction shown in 8, andl i g. if is it View of cm of the wedges employed for locking the grinding bars or knives in nom Referring no sition'. l

'to the drawings, and especially to Figs. 1 to 7, the numeral l 'indielites-a heating roll which, in this particular 7 construction, comprises a hollow cylinder or drum 2v having ends or heads 3, ihis cylinder or drum 2 is fast on a shaft 5, which is driven from-any suitable source of power (not shown). The ends of heads 3, ief the cylinder or drum 2 are provided with maimlrdly extending flanges or collars '6, 7 itltting around bosses 10 which, with the {hinges or collars 6, 7 are'slotted to receive keys 1?,by which the cylinder or drum 2 is fastened on the shaft 5 so es to turn therewith. Ribs or braces 9 are or may be provided on the interior-of the cylinder or drum 2 for strengthening the same.

The cylinder or drum is provided with a number of longitudinal slots for the reception of the grinding bars or knives 13 and wedges 1 1- Which, co-acting therewith, and with the walls of the slots 15, lock the bars or knives 13 to the drum or cylinder. The bars or knives-13, slots 15 and wedges 14, which will now he .descrihedin detail, are each substantially equal in length to the jdrinn or cylinder, and the bars or knives hr the wedges, or both, will preferably be provided with orogections which engage corresponding shoulders formed in the walls of the slots, but in these respects and in others variations may he made in constructime without departine from the invention.

Referrmg first to the articulsr constructions shown in Figs. 2 and geach of-the slots 15 is under-cut on oppositesides of its base to form shoulders 15 while each grinding her or knife '13 has, ctthe base ofits outer face e projection 16.. The rejection I6 is formed by cutting away the see of the her or knife, and engages Withone of the shoulders 1-5 in the slot 15, theopposit-e or inner iisce of the grindin" her being plain. The locking wedge 14 in t is perticular construction formed with a -projection 17 at the hose of its outer face, which engages the other shoulder 15 in the slot 15, the other toner longitudinally; as shown in plan in 3, and as indicated in dotted lines in Fig. 4, and one'wall of the slot 15 is tapered correspondingly. In these constructions the rojections on the Wedge end on the grindmg her end the shoulders 1n the slotsextend the full length of the cylinder, the locking wedges being driven in from one end thereot. This construction forms a very efiicient one its locking-the grinding bars or knives in position, and the employment of 'thelock'ing wedge" which taperlongitndinaily, allows f-ere very cheepend strong construction of roll and hers. Furthermore, any injured bar or bars may be easily and readily removed from the roll without disturbing the remaining bars, or removing the roll troin the mach ne I In Fig. 5 is shown a modification oi the construction shown in Fig. i. in this construction, the slot 15 is under-cut to form but one shoulder 18, which shoulder is lo--' cated at the base of the slot and extends throughout its length. The longitudinally tapering locking wedge. 14 is provided on its outer face with a projection 19, which engages this shoulder. The grinding bar, in this instance, has both of its faces lain,

and the inner face of the locking we ge is plain.

In the construction shown in Fig. 5*, both the grinding bar or knife l3-and the wedge 14 have both of their faces plain, and the slot 15 is not under-cut.

. 13 and above the tops of the locking wedges l4',"'serving as an a for keeping the wedgesand bars in position. The wedges in this construction taper longitudinally of'the cylinder as in the construe tion previously described and shown in Fig.

4, and their form and the form of the barsv or knives and the slots, 1n cross section,- is the same as that described in connection with said figure.

In Fig. 6 .a modification of the locking wedges 1s shown. In this construction the slot 1s under-cut to form one shoulder at its base, with which shoulder a projection 21,],

formed at the base of the outer face of the i grinding bar .13, engages. The other or inner face of the grinding bar is plain, and there is provided a. locking wedge 22,.whichlocking Wedge has both of its faces plain. This locking wedgein this particular instance tapers vertically, 'and one wall ofthe slottapers vertically correspondingly, the Wedge being driven into the slot from above,

thus locking the grinding bar securely in positi'on. I

In the construction shown in Fig. 6, both the grinding bar or knife 13 and the Wedge 22 are formed without any projection, and

the slot 15 is not undercut. The wedge 22 I tapers vertically, and one wall of the slot "is formed with a corresponding taper.

The filling blocks 20,- reviously described with reference to Fig. ,-may obvious] be used with the constructions'. describe in Figs. 6 and- 6*, the shell of the cylinder-being made ofless thickness than in the latter constructions, for such purpose.

In Figs. 8 and 9, a modification. of the beating roll is shown in which.the c linder' or drum 2 is replaced, by a plura ity of spiders 23, 24 fast on the shaft 5. The spiders 23 are provided with inwardly extending flanges or collars 25 which fit bosses ditional holding means being slotted to receive keys 27 by which the spiders are locked tothe shaft, spider 24' being slotted to receive a key 28 which fits in a corresponding slot on; a boss 29 provided on the shaft 5. The outer circumference or periphery of each of the spiders 23, 24 isormed with flanges 30, slotted to receive the grinding bars 13 and the locking wedges.- The various-constructions of grinding bars or knives and the locking wedges and the slots hereinbefore described with referente to Figs. 1 to 7, may be employed with the construction of beatin roll as shown and describedin Figs. 8 an 9, and it will not be necessary to describe-them again. j

In Fig. 8 the grinding bars or knives ar shown seated as in Fig. 7, filling blocks 20 of wood or other -suitable material hereinbefore" described in connection with Fig. 7. being placed between the grinding bars or knives and above'the wedges, whereas in the construction shownin Fig. 9, the slots in the flanges 30 of the-i'spiders have a depth sufli 'cient to allow the constructions hereinbefore referred to in connection with Figs. 4 to S to be used.

' What .I claim is 1.. A bandless roll for engines of the character described, comprising a cylinder r0 vided-with longitudinal slots, grinding ars seated in said slots; and separate tapered locking wedges coaEting with .said bars and the walls of the slots to hold the former in po'sition' in. said slots.

- 2. A 'bandless roll for engines of the character described comprising a cylinder provided with longitudinal slots, grinding bars seated insaid slots, separate tapered locking wedgescoacting with said bars and the walls of the'slots' to hold the former in position in the slots, and filling blocks positioned between the bars .l'b'ove said wedges.

A bandless roll for engines of the character described, comprising a cylinder provided with longitudinal slots, grinding bars seated insai d slots, and locking Wedges taars and the Walls of the slots to hold the former in position in said slots.

4. A bandless roll for engines of the character described, comprising a cylinder rovided with longitudinal slots Lshape in cross section, grinding bars L-sliaped in cross section seated in said slots, and tapered perin'g longitudinally and coacting with said locking Wedges coacting with said bars and the walls of the slots to hold the former in position in the slots.

:5. A band-less roll for engines of the character described, comprising a cylinder provided with longitudinal slots, said slots being under-cut at their bases to form shoulders -on opposite sides thereof throughout their length, grinding bars seated in said slots and having projections engaging with the shoulders and extending in one direction and iongitudinaity tapering: locking Wedges seated in said slots and ha ing; projections engaging the other shmihhz-is, said Wedges enacting with the grinding hers and the walls of the slots to hold the fernier in position in the slots.

(3. A bandless roll for engines of the characterdescribed comprising: a cylinder providedwith longitndinai slots, said slots being UlldQF-Clli at their bases toformsheul- 'ders on opposite sides thereet throughout their length grinding bars seated n said slats-and having PYOjQCtiOIlS engaging with the shoulders and extending in one threetion, longitudinally taperingiockingwedges seated in said slots and having projections engaging the other ehoniders, said Wedges support provided with longitudinal slots.

grinding; bill's seated in said slots, and sq unite tapered locking wedges coacting with said bars and the Walls 0'1"? the slots tohoid the fennel" in position in said slots.

In testimony'whei'eot, i have hereunto set my hand. in the presenve of two subscribing witnesses. v

:EDXRTAED A. JONES. \Vitnesses An'rinin DALE, FRANK E, 13mm m 

